We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Circularly polarized global navigation satellite systems metasurface antennas in sub-wavelength metallic cavities.
- Authors
García-Gámez, Laura; Bernard, Loïc; Sauleau, Ronan; Collardey, Sylvain; Mahdjoubi, Kouroch; Pouliguen, Philippe; Potier, Patrick
- Abstract
Two metasurface-inspired antennas embedded in a metallic cavity are introduced here. They are expected to be integrated on fast moving platforms enduring harsh accelerations and shocks. The metasurface allows enlarging the antenna bandwidth that is intrinsically reduced for small antennas embedded in sub-wavelength metallic cavities. The first one is only 60 × 60 × 20 mm3 (0.23 λ 1 × 0.23 λ 1 × 0.08 λ 1 at the frequency of 1164 MHz) and presents a dual-band behavior, covering both the lower and upper global navigation satellite systems (GNSS) bands (all GNSS bands are covered). It is fed by four probes and a dedicated circuit, ensuring the phase quadrature between adjacent feeds to achieve circular polarization over these two bands. For the second proposed antenna, circular polarization is achieved using two feed points connected to the radiating aperture of size 50 × 50 × 20 mm3 (0.26 λ 0 × 0.26 λ 0 × 0.10 λ 0 at the frequency of 1559 MHz). It covers the E1, L1, B1, and G1 GNSS bands. The numerical results are successfully validated by measurements.
- Subjects
ANTENNAS (Electronics); CIRCULAR polarization; METAMATERIAL antennas; GLOBAL Positioning System
- Publication
International Journal of Microwave & Wireless Technologies, 2023, Vol 15, Issue 8, p1273
- ISSN
1759-0787
- Publication type
Article
- DOI
10.1017/S1759078723000089